2021 Fiscal Year Final Research Report
A new development of an interface-reinforcing poly acid-RMGI adhesive system for secure bonding to finishing-irradiated dentin by Er:YAG laser
| Project/Area Number |
19K10139
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 57030:Conservative dentistry-related
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| Research Institution | Aichi Gakuin University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
掘江 卓 愛知学院大学, 歯学部, 講師 (50579993)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | Er:YAGレーザー / 象牙質 / ボンディング材 / レジン添加型グラスアイオノマーセメント / レジン / 接着強さ / 鉄イオン / 親水性プライマー |
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| Outline of Final Research Achievements |
In order to develop a new resin bonding system suitable for Er:YAG laser-finish irradiated dentin, an acid conditioning with 10% citric acid + 2% ferric chloride solution and priming with hydrophilic monomers consisting mainly of 4-MET and HEMA, followed by bonding with polyacid-based resin-modified glass ionomer (RMGI) bonding material was developed and the adhesive properties of the resin were investigated.
The three-step RMGI-based bonding system was found to transitionally approximate both the physical and mechanical properties of normal dentin and resin at the laser-irradiated bonding interface, resulting in improved adhesion of the resin.
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| Free Research Field |
歯学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究により，レーザーによるう蝕治療のなかで懸案であったレジンの接着性改善が実現できた。したがって，レーザーによる侵襲の少ない歯質切削と専用の接着材の併用により，う蝕治療におけるQOL向上に本研究は大きく寄与するものと期待される。
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